<template>
  <div class="shopcart">
    <ul>
    	<li v-for="item in shopcart" :key="item.id">
			<img :src="item.src" >
			<div>
				<p>{{item.title}}x{{item.num}}</p>
				<p>￥{{item.price}}</p>
				<p><button @click="del(item)">删除</button></p>
			</div>
		</li>
    </ul>
	<p v-if="shopcart.length">总价：￥{{tatalPrice}}</p>
	<p v-else>购物车暂无商品</p>
  </div>
</template>

<script>
import {mapState,mapGetters} from 'vuex'
export default {
  name: 'ShopCart',
  //vuex提供了mapState辅助函数，可以简化computed计算属性的写法
  // computed:{
	 //  shopcart(){
		//   return this.$store.state.shopcart
	 //  },
	 //  tatalPrice(){
		//   return this.$store.getters.tatalPrice
	 //  }
  // }
  computed:{
	  ...mapState(['shopcart']),
	  ...mapGetters(['tatalPrice'])
  },
  methods:{
	  del(item){
		  this.$store.commit('del',item);
	  }
  }
}
</script>
<style scoped>
	.shopcart{
		width: 100%;
		padding-bottom: 50px;
	}
	li{
		position: relative;
		border-bottom: 1px dashed #CCCCCC;
	}
	li div{
		display: inline-block;
		position: absolute;
		top: 10px;
		width: 120px;
		line-height: 30px;
		font-size: 14px;
	}
	img{
		width: 100px;
		border: 1px solid #ccc;
		margin: 10px 10px 8px 10px;
	}
	li div p:nth-child(2){
		color: #F00;
	}
	button{
		color: white;
		background:coral;
		border: none;
		padding: 5px;
	}
</style>

